| Kirk | W. A. | Allandale Farm, Wagin | WK2 | 1912 |
| Kirk | W. A. | Allandale Farm, Wagin | WK2 | 1924 |
| Kirk | W. J. | Allandale, Wagin | WK2 and 6A, 28C | 1962 |
| Kirkaldy | Robert | Fitz Locs. 52 & 160, Grass Patch | 4RK | 1926 |
| Kirkaldy | Robt W. | Fitzgerald Loc 142, 155 Boulder Road Kalgoorlie | 6KR | 1924 |
| Kirkby | G. R. | Commonage, Carnarvon | 1KK | 1912 |
| Kirkby | G. R. | Commonage Carnarvon | 1KK | 1924 |
| Kirkby Bros. | - | 347 Charles Street, North Perth | KB0 and 24D, 55F | 1962 |
| Kirkham | H. R. | Riverdale, Coolup | 1OK and 22B, 4E | 1962 |
| Kirkham | R. J. | Riverbrook, Coolup | 1VY and 11C, 22E | 1962 |
| Kirkham | Robt. | Grassmere, Coolup | 1VY | 1912 |
| Kirkham | Robt. | Grassmere Coolup | 1VY | 1924 |
| Kirkham | Wm. | Riverdale, Coolup | 1OK | 1912 |
| Kirkham | Wm. | Riverdale, Coolup | 1OK | 1924 |
| Kirkham | Wm. | Main Parade, West Guildford | 5OK | 1924 |
| Kirkland | Thos V. | Meekatharra | KK2 | 1924 |
| Kirkland | Thos. V. | Meekatharra | KK2 | 1912 |
| Kirkman | A. E. | Lakeway, Sunny-pines, Mandurah and Cooplup | K7A and 46D, 42E | 1962 |
| Kirkpatrick | G. E. | Peak Hill | VO1 | 1912 |
| Kirkpatrick | G. E. | Peak Hill | VO1 | 1924 |
| Kirkpatrick | John L. | Donnybrook | JK6 | 1912 |
| Kirkpatrick | John L. | Donnybrook | JK6 | 1924 |
| Kirkpatrick | R. H. C. | Springvale, Donnybrook | JK6 and 119B, 5E | 1962 |
| Kirkpatrick | Wm. | Mount Grey, Pastoral Leases Darlot | 5KB | 1924 |
| Kirkwood | Chas. | Old Broughton, Dulbelling | K1C | 1912 |
| Kirkwood | Chas. | Old Broughton, Dulbelling | K1C | 1924 |
| Kirkwood | Jas. John | Avon Location 21604, Dangin | 7KU | 1924 |
| Kirkwood | W. S. | Yowing Springs, Corrigin | WK3 | 1924 |
| Kirkwood | W. S. & A. M. | Yowing Springs, Corrigin | WK3 and 40A, 5B | 1962 |
| Kirkwood | W. S. (jnr.) | Narrogin Locs. 73, 66, 75, Narrogin | K4W and 47A, 32C | 1962 |
| Kirsch | Archd. | Donnybrook | AK2 | 1912 |
| Kirsch | Archd. | Donnybrook | AK2 | 1924 |
| Kirsch | John | Coromup, Esperance | KJ3 | 1912 |
| Kirsch | John | Coromup, Esperance | KJ3 | 1924 |
| Kirwan | J. J. | Loc. 475-8, Newdegate | JK8 and 48E, 10D | 1962 |
| Kirwan | N. W. | Common, Leonora | N1K | 1912 |
| Kirwan | N. W. | Common, Leonora | N1K | 1924 |
| Kirwan | O. R. | Loc. 476 Roe, Newdegate | V0K and 11C, 69E | 1962 |
| Kirwan | P. W. | 1933 (Roe), Newdegate | P0K and 14E, 10D | 1962 |
| Kirwan Bros. | - | Merrivale Downs, Esperance | SD3 and 33D, 34E | 1962 |
| Kirwin & Tomlinson | - | Commonage, Karridale | K2T | 1912 |
| Kirwin & Tomlinson | - | Commonage Karridale | K2T | 1924 |
| Kish | Kayer | Bummer's Creek, Malcolm | K4K | 1924 |
| Kissane | B. M. & D. | Sunnyhill, Harrismith | KB8 and 47D, 119E | 1962 |
| Kissane & Co. | - | Boileau, Dumbleyung | MK2 and 3B, 27E | 1962 |
| Kissane Bros. | (C. D. & J. E.) | Locs. 6809-10, 5908-9, 8437, Dumbleyung | K3B and 38A, 33B | 1962 |
| Kissane Bros. | - | Lowpark & Boileau, Dumbleyung | K3B | 1924 |
| Kitchen | J. | 73-4, 396-4, 303, 4506, Boyanup | J1K and 38B, 48A | 1962 |
| Kitchen | J. | Hillcrest Loc. 2047, Rocky Gully, via Mt Barker | KJ1 and 22B, 47A | 1962 |
| Kitchen | S.E | Hillside, Boyanup | S1K | 1962 |
